Density-matched suspensions and associated methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-021/00
E21B-033/13
E21B-033/14
E21B-043/25
C09K-008/04
C09K-008/487
C09K-008/94
출원번호
UP-0273711
(2008-11-19)
등록번호
US-7757766
(2010-08-09)
발명자
/ 주소
Lewis, Sam
Szymanski, Michael
Gordon, Christopher
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Roddy, Craig W.
인용정보
피인용 횟수 :
15인용 특허 :
38
초록▼
Of the many compositions and methods provided herein, an example method includes a method of treating a subterranean formation that comprises combining components comprising water and a density-matched suspension to prepare a treatment fluid, wherein the density-matched suspension comprises a suspen
Of the many compositions and methods provided herein, an example method includes a method of treating a subterranean formation that comprises combining components comprising water and a density-matched suspension to prepare a treatment fluid, wherein the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending liquid, and introducing the treatment fluid into a well bore. An example composition includes a suspension that comprises a suspending liquid comprising a hydrophobic liquid, wherein the hydrophobic liquid hydrolyzes when placed in contact with an aqueous fluid to form hydrophilic products, and a solid particle suspended in the suspending liquid, wherein the suspension is a density-matched suspension.
대표청구항▼
What is claimed is: 1. A method of treating a subterranean formation comprising: combining components comprising water and a density-matched suspension to prepare a treatment fluid, wherein the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending
What is claimed is: 1. A method of treating a subterranean formation comprising: combining components comprising water and a density-matched suspension to prepare a treatment fluid, wherein the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending liquid; and introducing the treatment fluid into a well bore that penetrates the subterranean formation. 2. The method of claim 1, wherein the treatment fluid comprises at least one fluid selected from the group consisting of a drilling fluid, a stimulation fluid, a clean-up fluid, and a cement composition. 3. The method of claim 1 wherein the suspending liquid comprises a hydrophobic liquid. 4. The method of claim 1, wherein the suspending liquid comprises a hydrophobic liquid that hydrolyzes when placed in contact with an aqueous liquid to form one or more hydrophilic products. 5. The method of claim 1, wherein the suspending liquid comprises at least one hydrophobic liquid selected from the group consisting of an acetal, a ketal, and an orthoester. 6. The method of claim 1, wherein the suspending liquid comprises at least one hydrophobic liquid selected from the group consisting of propylene carbonate, butylene carbonate, ethylene carbonate, and a glycerin carbonate. 7. The method of claim 1, wherein the suspending liquid comprises a mixture of hydrophobic liquids, wherein the mixture hydrolyzes when placed in contact with an aqueous liquid to form one or more hydrophilic products. 8. The method of claim 7, wherein the mixture hydrolyzes when the pH of the aqueous fluid is greater than about 9. 9. The method of claim 7, wherein the mixture hydrolyzes when the pH of the aqueous fluid is less than about 5. 10. The method of claim 8, wherein the density of the mixture is within about 1% of the density of the solid particle suspending in the mixture. 11. The method of claim 1, wherein the suspending liquid comprises a mixture of cyclic carbonates. 12. The method of claim 1, wherein the density-matched suspension comprises a suspending agent. 13. The method of claim 1, wherein the density-matched suspension comprises an organophilic clay. 14. The method of claim 1, wherein the solid particle comprises a polymeric fluid-loss-control additive. 15. The method of claim 1, wherein the solid particle has a density in the range of 0.85 grams per cubic centimeter to 1.4 grams per cubic centimeter. 16. The method of claim 1, wherein the solid particle is present in the density-matched suspension in an amount in the range of 10% to about 70% by weight of the suspension. 17. The method of claim 1 comprising selecting a target density for the density-matched suspension based at least on the solid particle; selecting two or more hydrophobic liquids having densities both higher and lower than the target density; combining components comprising the hydrophobic liquids in an appropriate ratio to form the suspending liquid having about the target density; and combining at least the suspending liquid and the solid particle to form the density-matched suspension. 18. The method of claim 1, wherein the treatment fluid comprises a cement, wherein the suspending liquid comprise a mixture of two or more cyclic carbonates, and wherein the solid particle comprises a polymer. 19. A method of cementing in a subterranean formation comprising: combining components comprising cement, water, and a density-matched suspension to form a cement composition, wherein the density-matched suspension comprises a suspending liquid and a solid particle suspended in the suspending liquid; and introducing the cement composition into a well bore that penetrates the subterranean formation. 20. The method of claim 19 wherein the density-matched suspension is combined with the water prior to or at the same time as the cement is combined with the water. 21. The method of claim 19, wherein the suspending liquid comprises a mixture of hydrophobic liquids, wherein the mixture hydrolyzes when placed in contact with an aqueous liquid at a pH of greater than about 9 to form one or more hydrophilic products. 22. The method of claim 21, wherein the cement composition is foamed. 23. The method of claim 21, wherein the density of the mixture is within about 5% of the density of the solid particle suspended in the mixture. 24. The method of claim 19, wherein suspending liquid comprises a mixture of cyclic carbonates.
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